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Meridian Enterprise workspace

Secure workspace

Mail that means business.

Mail, calendar, tasks and files in one place — protected by Meridian IT.

Verified sendersSSO, DMARC checks and internal verification.
One workspaceMail, calendar, tasks and files, together.
Policy protectedTLS in transit and seven-year retention.
All systems operational TLS 1.3 · SSO · 7-year retention

Meridian Mail

Sign in

Use your Meridian account to continue.

or sign in with your work email

Staging environment — prefilled test credentials. Mail is read live from Dovecot.

Protected by Meridian IT · TLS 1.3
Password Verify

Two-factor authentication

Verify it’s you

Your password was accepted. Confirm this sign-in with a passkey or authenticator code.

AC
Avery Chenavery.chen@meridian.example
Secure
Use a passkey Windows Hello or your device passkey
or enter a verification code
Demo code 123456

Protected by Meridian IT · FIDO2 passkeys supported
Password · Passkey · TOTP · Recovery code
Password Enroll

Required security setup

Protect your account

Your organization requires a second factor before this mailbox opens. Set up an authenticator app or a passkey now.

AC
Avery Chenavery.chen@meridian.test
Required

Add this secret to your authenticator app, then enter the six-digit code.

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Second factor is stored and verified by Meridian.
First-time enrollment · TOTP or WebAuthn
Meridian Mail · staging environment
You’re offline. The app shell is cached; sending and mailbox changes will resume when the connection returns.
M Meridian Mail
Ctrl K
Search all mail Instant local index
Try
Mailboxes
M
Meridian Enterprise workspace
AC
Avery Chen avery.chen@meridian.example

Inbox

1 selected

Meridian directory

People

8 contacts

Meridian workspace

Tasks

My tasks and team follow-ups

Meridian workspace

Files

Company storage and connected drives

Meridian outbox

Scheduled

Messages waiting for their send time

Upcoming sends

Scheduled messages stay on the server and send in your time zone.

Time zone
Server-backed scheduleScheduled mail is held in the Meridian outbox, survives sign-out and restarts, and can be sent now, edited or cancelled until its send time.

Meridian workspace

Calendar

October 2026

Week 44
MonTueWedThuFriSatSun
Agenda

Tuesday, October 27

3 events
Calendar data stays within Meridian.

Meridian workspace

Settings

Managed by Meridian IT

Workspace preferences

Appearance

Theme

Pick a theme, or follow the operating system.

Accent

One color across buttons, selection and links.

Message list

Choose how much of each message to show.

Three-line rows with a subject and preview line.

Reading

How messages open and get marked as read.

Mark messages as read when opened Leave off if you prefer to mark messages read manually.
Auto-advance after archive or delete Open the next conversation automatically, like Outlook’s reading pane.
Default importance for new mail Applied to every new message you compose.
Request return receipts by default New messages ask the recipient to confirm delivery.

Composing

Defaults applied to new messages from this device.

Save a copy in Sent Every sent message is stored in the Sent folder.
Enabled
Spell check before sending Roundcube checks the message as you type.
Enabled
Undo send window Messages wait in a server-side queue before delivery.
Default From identity Used when you start a new message. Replies keep the receiving alias.
Signature on new messages Insert your signature when you start a new message.

Signature

Plain text signature inserted beneath new messages. Replies and forwards are left clean.

Server-backed signature

Delivery

Choose which signals reach this device.

Desktop notifications Show an alert when new mail arrives while Meridian Mail is open.
New mail sound Play a short tone for new messages.
Calendar reminders Show an alert ten minutes before a meeting.

Preferences are stored in PostgreSQL. Desktop alerts require browser notification permission; sound and calendar reminders always fall back to an in-app notice.

Language & region

Controls dates, times, numbers, scheduled sends and calendar labels across the workspace.

LanguageLocale for dates, times and number formatting.
Time formatApplied to the message list, reader, tasks, audit log and scheduled sends.
Date formatUsed for message dates, task due dates and schedule previews.
Time zoneAll timestamps and scheduled sends use this zone.
Week starts onCalendar grid and work-hour planning.

Work hours

Schedule send uses these hours to recommend a delivery time and warn about quiet hours.

Working hoursFrom
to
Working daysUsed to find the next available work slot.

Automatic replies

Outlook-style out-of-office replies, backed by the Sieve vacation extension.

Automatic replies are offYour colleagues and external senders receive normal mail delivery.
Turn on automatic repliesSend an automatic reply while you are away.
Send replies only during a time periodLeave off to keep replying until you turn it off manually.
Inside MeridianSent to colleagues in your organization.
Always on with automatic replies
Outside MeridianDifferent wording for customers and partners.
Generated by the server and applied through Sieve.

Server-side Sieve rules

Rules run in Dovecot’s Sieve interpreter before mail reaches your inbox.

Loading rules…

New rule

Conditions are evaluated in order. The first matching rule wins unless the action is “Keep going”.

Conditions
Generated Sieve script Managed by Meridian 
Loading…

Audit log

Every security-relevant action on this account. Retained for seven years.

TimeActionTargetActorDetails
Loading audit log…

Audit entries are written by the server for sign-in, send, delete, rule changes and other mailbox mutations.

Sign-in protection

Two-factor authentication is required for password sign-in. SSO is handled by Meridian IT.

Checking security settings… Passkeys and authenticator codes protect this account.

Second-factor setup

Enroll an authenticator app or a WebAuthn passkey. Secrets are encrypted at rest; recovery codes are hashed.

First-time sign-in policy

Require an unenrolled user to set up a second factor before the mailbox opens.

Prompt enrollment at next sign-in Stored in PostgreSQL for this account. Disabled in staging until you enable it.

Sender protection

Policy controls for mail entering the workspace.

External sender warnings Show a warning banner on mail from outside meridian.test.
Message encryption TLS is enforced for mail leaving the workspace.
Enforced
Retention Mail is retained for seven years under Meridian policy.
7 years
Attachment scanning Inbound files are scanned before they reach your inbox.
Active

Outbound sending

Enforced per user by postfwd. Usage is live for the current rolling window.

— messages sent
—
Rolling 24-hour window —
AC

Avery Chen

VP Product · Meridian

Internal directory

Workspace

Your Meridian account and storage.

Work emailavery.chen@meridian.example
Verified
Mailbox storage2.4 GB of 15 GB used across mail and attachments.
16%
Retention policySeven years for all workspace mail.
7 years

Send-as identities

Aliases you can choose in the From field. Managed in the internal directory store.

Sign-in sessions

Devices currently signed in to this account.

Loading sign-in sessions…

About this concept

What you are looking at, and what carries into the skin.

Meridian Mail uses the Outlook-style four-zone layout with tenant identity, contextual command bar, threaded reading pane, security cues, directory and calendar. On staging, the Go backend reads and writes real Dovecot IMAP mailboxes, authenticates against PostgreSQL, and delivers outbound mail through Postfix. Settings and second-factor state are stored in PostgreSQL.

Threaded mail Instant search Server drafts Sieve rules Sender trust PWA Light + dark Four accents Responsive
Server-backed · API responses are never cached.

Service worker

Offline shell and installability. API responses are never cached.

App shell cacheChecking registration…
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VersionTemplate 2.0 · Aurora
2026.10
Connected Synced just now 1–12 of 12
Mailbox status

Notifications

Meridian IT · Security notifications are enabled

Message details

New event

Report email

Send this message to Meridian Security for review.

Why are you reporting this message?
Attachments and headers are included with the report. The sender is not notified. Reported mail moves to Junk and stays available for review.

Edit scheduled message

Change the message or move its send time.

Send this message now?

Delivery starts immediately instead of at the scheduled time.

The original schedule will be removed. Sent mail remains in the Sent folder and cannot be recalled from here.

Schedule send

Choose when this message leaves your outbox.

Pick a date and time Time zone
Scheduled times use your region setting.

Attachment

Preview

100%
Scanned by Meridian attachment protection

Connect storage

Bring your existing drives into one enterprise file workspace.

This template simulates the OAuth consent step. In production, use the provider’s OAuth app with least-privilege scopes and store refresh tokens encrypted.

Share file

Create a secure external link.

Enterprise access controls, watermarking and link revocation are handled by the file provider in production.

Recovery codes

Use each code once if you lose access to your passkey or authenticator.

Store these codes somewhere safe. Generating new codes invalidates the old set.

Set up authenticator

Scan or copy the secret into your authenticator app, then enter the current six-digit code.

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Verify with your passkey

Windows Hello is asking for your fingerprint, face or device PIN.

Waiting for your device…

Keyboard shortcuts

Next / previous conversationJK
Select conversationX
Extend selectionShiftJK
New messageC
Reply / reply all / forwardRAF
Archive conversationE
Delete conversation#
Mark unreadU
Star conversationS
Search all mail/CtrlK
This dialog?
Close a panelEsc

Shortcuts are ignored while you are typing. J and K move through the conversation list that is currently visible. Use X or the row checkboxes to start a multi-select; bulk actions appear above the list.